National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

28°F

-2°C

Humidity 100%
Wind Speed Vrbl 5 mph
Barometer 30.07 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Jan 3:15 am CST
Extended Forecast for

6 Miles NNE Castalia IA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 28. West wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. West wind around 7 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a steady temperature around 35. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Partly sunny, with a high near 43. West wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. Blustery, with a northwest wind 14 to 20 mph.

    Low: 20 °F

    Mostly Cloudy
    then Cloudy
    and Blustery

  • Wednesday

    Wednesday: Partly sunny, with a high near 24. Blustery, with a north wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 24 °F

    Partly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 9. North wind 10 to 15 mph becoming light northwest after midnight. Winds could gust as high as 23 mph.

    Low: 9 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Partly sunny, with a high near 26. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely. Cloudy, with a low around 21. South wind around 10 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.

    Low: 21 °F

    Snow Likely

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 28. West wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 42. West wind around 7 mph.
Monday Night
Increasing clouds, with a steady temperature around 35. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Partly sunny, with a high near 43. West wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 20. Blustery, with a northwest wind 14 to 20 mph.
Wednesday
Partly sunny, with a high near 24. Blustery, with a north wind 16 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 9. North wind 10 to 15 mph becoming light northwest after midnight. Winds could gust as high as 23 mph.
Thursday
A 30 percent chance of snow after noon. Partly sunny, with a high near 26. Light and variable wind becoming south 5 to 10 mph in the morning.
Thursday Night
Snow likely. Cloudy, with a low around 21. South wind around 10 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Friday
Snow likely. Mostly cloudy, with a high near 29. Northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 8. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 12. Northwest wind around 14 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 0. Northwest wind 10 to 13 mph.
Sunday
Partly sunny, with a high near 16. West wind 11 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Castalia IA
 43.19°N 91.62°W
Last Update:
3:16 am CST Jan 12, 2026
Forecast Valid:
3am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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Chance of Precipitation